this post was submitted on 19 Feb 2026
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Shush. We're this close to getting them to tax contrails, which would effectively be a tax on jet fuel.
No, you can fly to avoid the creation of contrails. Ironically, would actually be a boon for the environment, since contrail clouds are massive greenhouse generators https://youtube.com/shorts/qBPwloCdRKw
I thought they were just condensation?
Yes, but the phenomenon occurs at specific altitudes, so you just fly slightly higher or lower.
Gonna call BS on that short. Clouds cool the atmosphere because they reflect incoming visible light. Clouds also absorb infrared light, causing a greenhouse effect, but they also do that when they're not condensed into clouds. Their infrared absorption depends primarily on their composition, which doesn't change. Contrails are basically equivalent to cloud seeding, which is a method of cooling the atmosphere by increasing cloud cover.
Current scientific consensus is that contrails are a net contributor to warming (they trap more heat from escaping the atmosphere than they prevent from entering overall) - but it's a complex phenomena that's difficult to model, so studies vary a lot in estimating the magnitude of this effect - from being a fraction of airplane CO2 emissions, to being several time that.
There are both cooling and warming contrails.
This isn't someone guessing, man. He's citing research on the topic.
Essentially, these clouds are 50% opacity to visible light, but nearly 100% in infrared. So they block some incoming light, but reflect almost all infrared from the surface. It's a net warming effect at these altitudes.
Oh….. dear.